----- On Feb 15, 2018, at 12:53 PM, Kashyap Chamarthy kchamart(a)redhat.com wrote:
On Thu, Feb 15, 2018 at 11:41:37AM +0100, Lentes, Bernd wrote:
[...]
> Hi,
>
> i found that:
>
https://dustymabe.com/2015/01/11/qemu-img-backing-files-a-poor-mans-snaps...
>
> I tried it and it seemed to work, although my root fs was checked
> after the commit, anything else seemed to work. What do you think of
> this procedure ?
Instead of 'qemu-img create', I'd suggest using `virsh
snapshot-create-as` (as shown in my previous email). This will tell
libvirt to automatically use the just created QCOW2 overlay.
But yeah, one useful bit is to use the `virt-xml` tool to point to the
desired disk image (instead of `virsh edit` that I mentioned in the
previous email):
$ virt-xml F21server --edit target=vda \
--disk driver_type=raw,path=./A.raw
--
Hi Kashyap,
thanks for your quick and detailed answers. Just to be complete.
The procedure in the above mentioned link does work with my old software ?
pc59093:~ # rpm -qa|grep -iE 'libvirt|kvm'
libvirt-cim-0.5.12-0.7.16
libvirt-python-1.2.5-1.102
libvirt-client-1.2.5-15.3
kvm-1.4.2-47.1
sles-kvm_en-pdf-11.4-0.33.1
libvirt-1.2.5-15.3
Bernd
Helmholtz Zentrum München